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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Jan. 31, 2020
Notes to Financial Statements  
Provision (benefit) for Income Taxes
   2020  2019
Current      
     Federal  $6,986  $23,863
     State   3,205  11,925
Provision for Income Taxes  $10,191 $35,788
Income Tax Rate

   Period ended January 31,
   2020  2019
U.S. federal statutory tax rate   21.0%   21.0%
State income tax expense, net of
Federal tax benefit
   9.2%    7.51 %
Effective Tax Rate   30.2%   28.51%